7600GT acting weird with new 27" display

[tijs]

hi all,

 

I have working config running 10.5.4. I've never had any problems with my 7600GT after using the natit dual 0.2 kexts, but since I bought my new display, it's gone crazy.

 

When I start the computer after the desktop appears, I get blue flickers (just like when it's detecting new displays). After one restart the problem goes away (happily).

Also coming back from sleep produces the very same flicking.

 

 

I haven't found any kind of similar threads, so please help if you know the solution

 

thanks in advance